Amazon.com: HP 793739-001 System board (motherboard) - ProDesk 400 G3 MT : Electronics
HP ProDesk 400 G3 Mini-PC original WLAN/Bluetooth adapter - sparepartworld.com
HP Prodesk 400 G3 SFF i5-6500/4GB/256GB SSD/WIN10PRO
Amazon.com: Sparepart: HP Inc. System Board ProDesk 400 G3 SFF, 799156-001 (400 G3 SFF) : Electronics
Amazon.com: HP ProDesk 400 G3 Small Form Factor, Intel Core Quad i5 6500 up to 3.6 GHz, 16GB DDR4, 512GB SSD, WiFi, BT 4.0, DVDRW, VGA, DP, Windows 10 Pro 64-Multi-Language Support
HP ProDesk 400 G3 SFF Core i5 3.2 GHz - SSD 512 GB RAM 8GB | Back Market